Bug 12075: fix keyboard shortcuts broken by jQueryUI upgrade

The recent jQueryUI upgrade broke keyboard shortcuts in the staff client
because of changes to the jQueryUI API. This patch fixes the problem.

To test, apply the patch and clear your browser cache if necessary.

- View any page in the staff which includes header search tabs for check
  out, check in, or catalog search (staff client home page or
  circulation page for instance).
- Test the keyboard shortcuts: Alt-q for catalog search, Alt-u for check
  out, Alt-r for check in.
- Each keyboard shortcut should select the correct tab.

Followed test plan, patch behaves as expected.
Signed-off-by: Marc Véron <veron@veron.ch>

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Passes all tests and QA script.
Confirmed that the shortcuts were broken before the patch
and now work again after applying it.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>